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Re: [ATM] Aluminum Mirrors [was 'newbie question']
Hmmm... Using India Ink for polishing aluminum. Who wouldda thought.
Seems to me I was reading about that in the old 3 book ATM series about 35 years ago and reported such several years ago on the ATM List. Amazing that you can just wait a couple years and "Discover and Patent" a new technology that is ages old.
I bet that if you did a search under my name or the title of "polishing aluminum mirror" you'd be able to verify this one. If I wasn't so lazy, I'd do it.
Ken Hunter
Michael Byorick <mbyorick@aznex.net> wrote:
Obviously not as good as a glass mirror, but, nevertheless interesting
process & results:
U.S. Patent 6,966,820 to Lyons, III , et al. [issued November 22, 2005]
"High Quality Optically Polished Aluminum Mirror And Process For Producing"
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1
&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=6,966,820.PN.&OS=PN/6,966
,820&RS=PN/6,966,820
Abstract & Summary:
A new technical advancement in the field of precision aluminum optics
permits high quality optical polishing of aluminum monolith, which, in the
field of optics, offers numerous benefits because of its machinability,
lightweight, and low cost. This invention combines diamond turning and
conventional polishing along with india ink, a newly adopted material, for
the polishing to accomplish a significant improvement in surface precision
of aluminum monolith for optical purposes.
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